
Home oxygen concentrators (molecular sieve type) must meet GB 9706.1, YY 0505 (domestic), and IEC 60601-1-2 (international) EMC standards. Their core components are an air compressor, a molecular sieve tower controlled by a solenoid valve, and an oxygen concentration sensor. The standards require that during long-term operation, the noise generated by the compressor motor and solenoid valve switching should not affect the accuracy of the oxygen concentration monitoring circuit. Simultaneously, the device must have a certain tolerance to fluctuations in the household power grid (voltage dips, interruptions) to ensure a continuous and stable oxygen supply.